ArcGIS Online: opening hosted feature layers in ArcGIS Desktop

In ArcGIS Online, it seems impossible to prevent a user from opening a Hosted Feature Layer (or any of its Views) in ArcGIS Desktop. Once a Hosted Feature Layer (or any of its Views) is opened in ArcGIS Desktop, the user is able to export that data. This is a severe security issue.

There should be a way for ArcGIS Administrators to prevent users (named users and/or Everyone) from opening Hosted Feature Layers (or any of their Views) from within ArcGIS Desktop (including Pro), and through extension, being able to download the data.

Agreed, surprised this still hasn't got attention, and only recently did I try and take a look into this issue with the 2017 update. With the addition of layer views in Dec 2016, we were so very close to creating a fake "map service", where data is publicly available yet not downloadable. The Rest Service exposure on public enabled feature services should allow us the ability to toggle/show the Source: Feature Service in the corner. Would also like the ability of the feature service to toggle visibility in ArcGIS Desktop or ArcGIS Pro, and disable the "Open in ArcGIS Desktop" button on the description. Even though you can sort of work your way to the rest service thru various methods. Not letting users add to ArcMap or add through searching in the AGOL in ArcMap or ArcPRo would be a quick step in the right direction.